CN102650805A - Projecting apparatus and a correction method for images projected in multiple directions - Google Patents
Projecting apparatus and a correction method for images projected in multiple directions Download PDFInfo
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- CN102650805A CN102650805A CN2012101665111A CN201210166511A CN102650805A CN 102650805 A CN102650805 A CN 102650805A CN 2012101665111 A CN2012101665111 A CN 2012101665111A CN 201210166511 A CN201210166511 A CN 201210166511A CN 102650805 A CN102650805 A CN 102650805A
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Abstract
The invention discloses a projecting apparatus and a correction method for images projected in multiple directions. The projecting apparatus comprises a shell as well as a central processor, a gravity sensor and an image overturning module arranged on the shell, wherein the gravity sensor and the image overturning module are respectively in communication connection with the central processor. The correction method is as follows: according to the angle of inclination of the shell relative to the horizontal direction and the projection angle of the projecting apparatus detected by the gravity sensor, the images are overturned by the image overturning module on one hand, so that the images projected by the projecting apparatus are erect; the correction angle needed in the keystone correction method is calculated according to the angle range of the angle of inclination on other hand; and finally, the keystone correction is conducted according to the correction angle. The gravity sensor is additionally arranged on the projecting apparatus and can detect the projecting attitude of the projecting apparatus, and the corresponding angle and direction to be corrected are calculated according to the projecting attitude, so that the keystone correction for the images projected in multiple directions can be realized automatically.
Description
Technical field
The present invention relates to a kind of projector, relate in particular to the bearing calibration of a kind of projector and multi-direction projected image thereof.
Background technology
Original projector just projects on the wall of setting, and the automatic keystone of realization is just with respect to the wall of erectting, and micro projector possibly also can project the roof, to realize that so the original technology of automatic keystone is not enough.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of and can projection be projected to the projector on the carrier of other direction.
For realizing above-mentioned purpose; Said projector; Comprise housing and the central processing unit that is arranged in the housing; Be characterized in that said projector also comprises gravity sensor and the mirror image switch module that all is arranged in its housing, said gravity sensor is connected with said central processing unit communication respectively with the mirror image switch module.
Another object of the present invention is to provide the bearing calibration of the multi-direction projected image of said projector.
For realizing above-mentioned purpose, the bearing calibration of the multi-direction projected image of described projector is characterized in, comprise,
Step 1: said gravity sensor detects said housing with respect to the angle of inclination of horizontal direction and the crevice projection angle of projector; Said mirror image switch module is overturn according to the image of this crevice projection angle to projector projects, and the image that makes projector projects is upright;
Step 2: judge the mode that projector is placed according to said angle of inclination; If the absolute value at said angle of inclination smaller or equal to 45 °, is then represented projector to wall projections, this moment execution in step three; If the absolute value at said angle of inclination greater than 45 ° and smaller or equal to 135 °, is then represented projector to the roof projection, this moment execution in step four; If the absolute value at said angle of inclination, representes then that projector is vertically placed greater than 135 ° and smaller or equal to 225 ° and to wall projections, this moment execution in step four; If the absolute value at said angle of inclination greater than 225 ° and smaller or equal to 315 °, is then represented projector projection earthward, this moment execution in step four;
Step 3: proofreading and correct angle is ± 45 °, and execution in step five then;
Step 4: proofread and correct angle and be said angle of inclination add ± 45 °, execution in step five then;
Step 5: carry out keystone according to said correction angle.
Beneficial effect of the present invention is; Said projector increases gravity sensor, can detect the residing projection posture of projector this moment, according to this projection posture; Calculate the corresponding angle and direction that needs correction, to realize the keystone of automatic multi-direction projected image.
Description of drawings
Fig. 1 is the functional-block diagram of projector of the present invention.
Fig. 2 is the process flow diagram of bearing calibration of the multi-direction projected image of projector of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Fig. 1 is the functional-block diagram of projector of the present invention; As shown in Figure 1; Said projector; Comprise housing and the central processing unit that is arranged in the housing, said projector also comprises gravity sensor and the mirror image switch module that all is arranged in its housing, and said gravity sensor is connected with said central processing unit communication respectively with the mirror image switch module.
Fig. 2 is the process flow diagram of bearing calibration of the multi-direction projected image of projector of the present invention, and as shown in Figure 2, the bearing calibration of the multi-direction projected image of said projector may further comprise the steps,
Step 1: said gravity sensor detects said housing with respect to the angle of inclination γ of horizontal direction and the crevice projection angle β of projector; To the image of the projector projects S1 that overturns, the image that makes projector projects is upright to said mirror image switch module according to this crevice projection angle β;
Step 2: judge the mode S2 that projector is placed according to said angle of inclination γ; If the absolute value of said angle of inclination γ smaller or equal to 45 °, is then represented projector to wall projections, this moment execution in step three; If the absolute value of said angle of inclination γ greater than 45 ° and smaller or equal to 135 °, is then represented projector to the roof projection, this moment execution in step four; If the absolute value of said angle of inclination γ, representes then that projector is vertically placed greater than 135 ° and smaller or equal to 225 ° and to wall projections, this moment execution in step four; If the absolute value of said angle of inclination γ greater than 225 ° and smaller or equal to 315 °, is then represented projector projection earthward, this moment execution in step four;
Step 3: proofreading and correct angle [alpha] is ± 45 ° of S3, and execution in step five then;
Step 4: proofreading and correct angle [alpha] is that said angle of inclination γ adds ± 45 ° of S4 that execution in step five then;
Step 5: carry out keystone S5 according to said correction angle [alpha].
What be worth explanation is that the keystone method described in the present invention is a prior art, repeats no more to its this instructions of content.
Being merely preferred embodiment of the present invention in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of claim of the present invention change and modification, all should belong to technological category of the present invention.
Claims (2)
1. projector; Comprise housing and the central processing unit that is arranged in the housing; It is characterized in that: said projector also comprises gravity sensor and the mirror image switch module that all is arranged in its housing, and said gravity sensor is connected with said central processing unit communication respectively with the mirror image switch module.
2. the bearing calibration of the multi-direction projected image of projector according to claim 1 is characterized in that: comprises,
Step 1: said gravity sensor detects said housing with respect to the angle of inclination of horizontal direction and the crevice projection angle of projector; Said mirror image switch module is overturn according to the image of this crevice projection angle to projector projects, and the image that makes projector projects is upright;
Step 2: judge the mode that projector is placed according to said angle of inclination; If the absolute value at said angle of inclination smaller or equal to 45 °, is then represented projector to wall projections, this moment execution in step three; If the absolute value at said angle of inclination greater than 45 ° and smaller or equal to 135 °, is then represented projector to the roof projection, this moment execution in step four; If the absolute value at said angle of inclination, representes then that projector is vertically placed greater than 135 ° and smaller or equal to 225 ° and to wall projections, this moment execution in step four; If the absolute value at said angle of inclination greater than 225 ° and smaller or equal to 315 °, is then represented projector projection earthward, this moment execution in step four;
Step 3: proofreading and correct angle is ± 45 °, and execution in step five then;
Step 4: proofread and correct angle and be said angle of inclination add ± 45 °, execution in step five then;
Step 5: carry out keystone according to said correction angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101665111A CN102650805A (en) | 2012-05-25 | 2012-05-25 | Projecting apparatus and a correction method for images projected in multiple directions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101665111A CN102650805A (en) | 2012-05-25 | 2012-05-25 | Projecting apparatus and a correction method for images projected in multiple directions |
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| CN102650805A true CN102650805A (en) | 2012-08-29 |
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| CN2012101665111A Pending CN102650805A (en) | 2012-05-25 | 2012-05-25 | Projecting apparatus and a correction method for images projected in multiple directions |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660789A (en) * | 2013-11-20 | 2015-05-27 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN104765231A (en) * | 2014-01-06 | 2015-07-08 | 光宝科技股份有限公司 | Portable device with projection function and projection method |
| CN105093789A (en) * | 2015-07-03 | 2015-11-25 | 中兴通讯股份有限公司 | Method and device for realizing trapezoidal distortion correction of projection surface and projector |
| CN105450960A (en) * | 2014-06-30 | 2016-03-30 | 联想(北京)有限公司 | Control method and electronic equipment |
| CN106331666A (en) * | 2015-07-03 | 2017-01-11 | 中兴通讯股份有限公司 | Trapezoidal projection terminal correction method and device, and projection terminal |
| CN106331551A (en) * | 2016-09-22 | 2017-01-11 | 青岛小帅影院科技有限公司 | Projection image control system and projection image control method |
| CN106454294A (en) * | 2016-10-20 | 2017-02-22 | 微鲸科技有限公司 | Projector screen correction method and projector |
| CN106657953A (en) * | 2016-11-22 | 2017-05-10 | 江苏轩博电子科技有限公司 | Projector automation trapezoid correction system |
| CN107343186A (en) * | 2017-06-13 | 2017-11-10 | 北京小米移动软件有限公司 | Projector equipment control method and device |
| WO2018036072A1 (en) * | 2016-08-21 | 2018-03-01 | 华为技术有限公司 | Method for projection and projection device |
| CN108121232A (en) * | 2016-11-28 | 2018-06-05 | 英业达科技有限公司 | Projection arrangement and projecting method |
| CN108508683A (en) * | 2018-02-28 | 2018-09-07 | 苏州佳世达光电有限公司 | A kind of projection arrangement |
| CN108519717A (en) * | 2018-02-28 | 2018-09-11 | 歌尔股份有限公司 | It projects robot device and projects the picture adjusting method of robot |
| CN108900901A (en) * | 2018-05-30 | 2018-11-27 | 太仓鸿策拓达科技咨询有限公司 | Mobile device optical projection system |
| CN111385551A (en) * | 2018-12-28 | 2020-07-07 | 精工爱普生株式会社 | Projector control method and projector |
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| CN1465178A (en) * | 2001-08-15 | 2003-12-31 | 三菱电机株式会社 | Method and system for correcting keystoning in a projector arbitrarily oriented with respect to a display surface |
| CN201844838U (en) * | 2010-09-19 | 2011-05-25 | 北京腾瑞万里科技有限公司 | Device and system for displaying navigation information in projection mode |
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| CN1465178A (en) * | 2001-08-15 | 2003-12-31 | 三菱电机株式会社 | Method and system for correcting keystoning in a projector arbitrarily oriented with respect to a display surface |
| CN201844838U (en) * | 2010-09-19 | 2011-05-25 | 北京腾瑞万里科技有限公司 | Device and system for displaying navigation information in projection mode |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660789A (en) * | 2013-11-20 | 2015-05-27 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN104765231A (en) * | 2014-01-06 | 2015-07-08 | 光宝科技股份有限公司 | Portable device with projection function and projection method |
| CN105450960B (en) * | 2014-06-30 | 2019-07-26 | 联想(北京)有限公司 | A kind of control method and electronic equipment |
| CN105450960A (en) * | 2014-06-30 | 2016-03-30 | 联想(北京)有限公司 | Control method and electronic equipment |
| CN106331666A (en) * | 2015-07-03 | 2017-01-11 | 中兴通讯股份有限公司 | Trapezoidal projection terminal correction method and device, and projection terminal |
| CN105093789B (en) * | 2015-07-03 | 2021-05-11 | 中兴通讯股份有限公司 | Method and device for realizing keystone distortion correction of projection surface and projector |
| US10645354B2 (en) | 2015-07-03 | 2020-05-05 | Zte Corporation | Projection terminal keystone correction method and device, and projection terminal and storage medium |
| CN106331666B (en) * | 2015-07-03 | 2020-02-07 | 中兴通讯股份有限公司 | Projection terminal trapezoidal correction method and device and projection terminal |
| CN105093789A (en) * | 2015-07-03 | 2015-11-25 | 中兴通讯股份有限公司 | Method and device for realizing trapezoidal distortion correction of projection surface and projector |
| CN108353155A (en) * | 2016-08-21 | 2018-07-31 | 华为技术有限公司 | A kind of method and projection device for projection |
| CN108353155B (en) * | 2016-08-21 | 2021-02-05 | 华为技术有限公司 | Method for projection and projection equipment |
| WO2018036072A1 (en) * | 2016-08-21 | 2018-03-01 | 华为技术有限公司 | Method for projection and projection device |
| CN106331551A (en) * | 2016-09-22 | 2017-01-11 | 青岛小帅影院科技有限公司 | Projection image control system and projection image control method |
| CN106331551B (en) * | 2016-09-22 | 2023-10-13 | 青岛小帅智能科技股份有限公司 | Projection image control system and projection image control method |
| CN106454294A (en) * | 2016-10-20 | 2017-02-22 | 微鲸科技有限公司 | Projector screen correction method and projector |
| CN106657953A (en) * | 2016-11-22 | 2017-05-10 | 江苏轩博电子科技有限公司 | Projector automation trapezoid correction system |
| CN108121232A (en) * | 2016-11-28 | 2018-06-05 | 英业达科技有限公司 | Projection arrangement and projecting method |
| CN107343186A (en) * | 2017-06-13 | 2017-11-10 | 北京小米移动软件有限公司 | Projector equipment control method and device |
| CN108508683A (en) * | 2018-02-28 | 2018-09-07 | 苏州佳世达光电有限公司 | A kind of projection arrangement |
| CN108508683B (en) * | 2018-02-28 | 2021-04-20 | 苏州佳世达光电有限公司 | Projection device |
| CN108519717A (en) * | 2018-02-28 | 2018-09-11 | 歌尔股份有限公司 | It projects robot device and projects the picture adjusting method of robot |
| CN108900901A (en) * | 2018-05-30 | 2018-11-27 | 太仓鸿策拓达科技咨询有限公司 | Mobile device optical projection system |
| CN111385551A (en) * | 2018-12-28 | 2020-07-07 | 精工爱普生株式会社 | Projector control method and projector |
| CN111385551B (en) * | 2018-12-28 | 2023-06-16 | 精工爱普生株式会社 | Projector control method and projector |
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Application publication date: 20120829 |